Panamera's Multiple Engine Issues: Seeking Real Solutions

Hey there! I've had some experience with diesels and went through something very similar with my 2018 Porsche Cayenne Diesel. The symptoms you're describing sound exactly like what I dealt with. Had it fixed at my local Porsche specialist about 6 months ago, turned out to be a faulty injector. Cost me around 515€ to get it sorted, including parts and labor. The shop replaced the defective injector and my car's been running like a charm since then. Could you share more details about when these issues started and if you've noticed any specific patterns (like does it happen more when the engine's cold or hot)? Also, have you checked your fuel quality lately? These details would help confirm if we're dealing with the same issue. Feel free to hit me back with more info. Always happy to help a fellow Porsche owner!

Thanks for sharing your experience! My issues started about 2 weeks ago, mainly when the engine is cold. Just had my latest service done at 90129 KM, and everything was fine before that. The problems seem worse in the morning and tend to improve a bit after the engine warms up. I've been using premium diesel from the same station for years, so I doubt it's fuel quality. Your injector situation sounds similar to what I'm experiencing. Did you notice any blue smoke from the exhaust before getting it fixed? I'm seeing some, especially during startup. Might take it to the dealer next week if it doesn't improve.

Hey again! Yeah, now that you mention the blue smoke, I definitely had that too with my Cayenne, especially during cold starts. That's actually one of the telltale signs of a faulty injector, it was spraying too much fuel into the cylinder, causing incomplete combustion. And like you, my issues were always worse when the engine was cold. The fact that your problems started after a service is interesting, had something similar happen to me. Sometimes these issues can pop up after regular maintenance if something wasn't reassembled quite right or if there was contamination in the fuel system during the service. I initially put off going to the dealer thinking it might improve, but honestly, the problem just got worse. Looking back, I should've taken it in sooner. The blue smoke you're seeing is definitely not normal, and if it's anything like what I experienced, it could lead to more expensive repairs if left unchecked. One thing I learned from my experience, don't wait too long. These modern diesel engines are pretty complex, and what starts as a single faulty injector can snowball into bigger issues. Let me know how it goes at the dealer, I'm curious if it turns out to be the same problem!

Thanks so much for all the detailed advice! You've definitely convinced me not to wait around hoping it'll fix itself. I've actually just called the dealer and scheduled an appointment for Monday morning. Better to tackle this now than risk more expensive repairs down the line. Your experience with the injector issue really helps – at least now I have a good idea of what I might be dealing with and what the costs could look like. Interesting point about the service connection too. I'll make sure to mention that to the technician. Will definitely keep you posted on what they find. Really appreciate you taking the time to share your experience – it's super helpful having someone who's been through the same thing!